358 Mr. R. E. Turner on Fossorial Hymenoptera. 
broader than long, clothed with delicate golden pubescence, 
which extends on to the labrum. Antenoz inserted more 
than twice as far from the anterior ocellus as from the base 
of the clypeus, each of the eight apical joints of the flagellum 
very distinctly narrowed from the base to the apex. Front 
distinctly raised above the base of the antenne, with a 
shallow longitudinal sulcus not reaching the anterior ocellus. 
HKyes strongly divergent towards the vertex, the inner margin 
widely but very shallowly subemarginate. Front and vertex 
smooth. Pronotum smooth, the dorsal surface short and 
transverse; parapsidal furrows of the mesonotum deep. 
Median segment longer than broad, narrowed to the apex, 
smooth and shining, convex. Pleura and abdomen sparsely 
covered with very delicate pale golden pubescence ; abdomen 
rather strongly compressed laterally; the first segment half 
as long again as the apical breadth, narrowed to the base. 
First abscissa of the radius shorter than the third, the latter 
half as long as the second ; the third cubital cell receiving 
the second recurrent nervure at one-third from the apex ; the 
fuscous apical margin does not quite reach the third trans- 
verse cubital nervure. ; 
Hab. Omilteme, Guerrero, 8000 ft. (AZ. H. Smith) ; July. 
Easily distinguished from zchneumonoides by the absence 
of black markings, by the smooth front, the much shorter 
clypeus, and the almost obsolete emargination of the eyes ; 
from reversus by the very different form of the third cubital 
cell, by the absence of a carina on the clypeus, and by the 
shorter and broader first abdominal segment. 
A, TIrenangelus tenuatus, Turn. 
Ceropales tenuatus, Turn, Proc. Zool. Soc. London, p. 840 (1910). 2. 
FAlub, Kuranda, Queensland. 
This species must be included in the genus, though differing 
in the very long third cubital cell, which is twice as long on 
the radius as the second, and in the absence of a raised space 
above the base of the antennae. As in the other species, the 
pronotum does not reach the tegule. The neuration is very 
similar to that of the genus Xanthampulex, but the frontal 
prominence is absent. ‘This prominence is much more deve- 
loped in Xanthampulex than in Jrenangelus, and, on the 
whole, I think tenuatus is best placed in the latter genus. 
I agree with Diicke in considering this genus as allied to 
Ceropales. I have previously expressed my opinion that 
Xanthampulex should be placed near that genus. 
